Britney Spears stepped out on the town last night to celebrate her 27th birthday with a few family and friends at the NYC nightclub Tenjune. After a day filled with live performances and a taped appearance in Rockefeller Center, Brit Brit looked ready to get her party on with some famous friends (Heidi Klum, Lance Bass to name but two) at her circus-themed b-day bash:

Britney Spears’ 27th birthday party Tuesday night ended up being quite a circus. Literally. To tie into the release of her latest album Circus, NYC hot spot Tenjune was transformed into a giant circus tent, complete with with a hot dog stand and popcorn and cotton candy machines emblazoned with the pop star’s name and even a man on stilts and jugglers. Outside the club, a huge screen projected circus imagery. Spears – who had taped a speech to air on the upcoming Rockefeller Center New York City Tree Lighting Ceremony special earlier in the day – arrived in a low-cut gray cocktail dress that showed a lot of cleavage. She smiled throughout the night as she mingled with guests, including her mother Lynne Spears, her manager Larry Rudolph, Lance Bass, Jeremy Piven, Robert Buckley and Ciara. As she was presented with a cake — featuring sparkling candles that tied into the bash’s circus theme — Barry Weiss, CEO and president of Jive Records, told the singer, “We are so proud and so happy to be a part of your life. Looking at your two boys today, it’s an amazing experience” … Added pal Bass, “I’m so proud of her! The album’s amazing. I love when people do themes for their albums. A circus is a lot of fun.”

Oh yeah, Britney had a very long day … as well as a long week ahead of her b-day party last night so I’m glad to see that she was able to let her hair down and relax a bit. She looked pretty hawt in that black dress of hers … her boobage was almost pouring out of the damn thing. Last night’s birthday celebration was a far cry from the messy birthday she celebrated last year. After the jump, check out a cute video interview with Britney at her party last night that was filmed by Entertainment Tonight (warning: the video autoplays) …

It looks like Britney had a great birthday … but she’s got a bizzy year ahead. My birthday wish for her is that she is able to achieve all her goals in a healthy and successful manner. Happy B-Day, Brit!!

[Photo credit: Splash News; Source]